Working Theory

The exhaust oxygen sensor – had been invented by Bosch - is a small sensor screwed into the motorcycle's exhaust system to measure the concentration of oxygen remaining in the exhaust gas to make enable an Electronic Engine Management to control the efficacy of the combustion process in the chambers. In modern bikes, these sensors are attached to the engine's exhaust pipe after the manifold to determine whether the mix of air and gasoline going into the cylinder is rich or lean. This information is sent to your Suzuki Boulevard C109R's engine management, which adjusts the air fuel mixture to deliver the best possible economy and lowest possible exhaust emissions.

Restore factory performance and optimum economy as if your Suzuki Boulevard C109R was new from factory.

Bosch patented ceramic technology affords best-in-class performance. The ceramic element is a critical part of the exhaust air fuel sensor. Bosch's patented materials and processes ensure unparalleled quality and engine performance. Also it sounds reassuringly, major motorcycle manufacturers place their trust in Bosch exhaust oxygen sensors. Why replace? Failure of these o2 sensors, either through normal aging, the use of leaded fuels, or due to fuel contamination with eg. silicones or silicates, can lead to ruined performance and lower fuel economy.

Compatibility

Our Bosch motorcycle oxygen sensor is available to all bikes fitted with air fuel sensor, torqued in M18 x 1.5mm threaded nut. This exhaust o2 sensor will fit your Suzuki Boulevard C109R if it is fitted with M18 exhaust air fuel sensor. This sensor doesn’t replace M12 sensors. Not quite sure this exhaust gas oxygen sensor fits your Suzuki Boulevard C109R? Feel free to contact our Tech Support. Our trained Magnum product specialists are looking forward to respond to your inquiry. Heavy exhaust modifications trip the engine management warning light. In this instance the replacement of the lambda probe will not resolve MIL issues. If so, you need to wire up oxygen sensor simulator to the oxygen sensor(s)' harness in order to get rid of ECU limp mode causes the bike run inefficiently spoiling both power and fuel economy.

Motorcycle Oxygen sensors are recommended to be replaced after each 30.000 miles - 48.000 km.

A motorcycle exhaust air fuel sensors are subject to extreme conditions due to high heat. A properly functioning o2 sensor significantly affects the basis for reliable engine operation and thus fuel consumption, emissions, and exhaust gas values. In common sense Bosch exhaust oxygen sensors are unbeatable thanks to their long longevity, excellent operation, and optimum engine compatibility. They make a fundamental contribution to gas saving the riders money and protecting the environment.It is not unlike on emission controlled Suzuki Boulevard C109R

All Bosch oxygen sensors come with special features. Double laser-welded stainless steel body protects the sensor against contamination. Pre-coated threads with anti-seize compound guarantees easy install and removal at any time. If original exhaust air fuel sensors are worn on your Suzuki Boulevard C109R or give slow signal, you can save up to 10% a year in gasoline costs! Check your lambda sensor frequently on your Suzuki Boulevard C109R and replace them with every second tune-up to improve motorcycle power and reduce harmful exhaust emissions.

Packing List

1 x Genuine Bosch Oxygen sensor

4 x Bullet Terminal

1 x Installation Instructions

Oxygen sensors are used to reduce vehicle emissions, by ensuring that engines burn their fuel efficiently and cleanly. Robert Bosch GmbH introduced the first automotive lambda probe in 1976. The sensors were introduced in the US from about 1980, and were required on all models of cars in many countries in Europe in 1993. By measuring the proportion of oxygen in the remaining exhaust gas, and by knowing the volume and temperature of the air entering the cylinders amongst other things, an ECU can use look-up tables to determine the amount of fuel required to burn at the stoichiometric ratio (14.7:1 air:fuel by mass for gasoline) to ensure complete combustion. When an internal combustion engine is under high load (such as when using wide-open throttle) the oxygen sensor no longer operates, and the engine automatically enriches the mixture to both increase power and protect the engine.

Internal Design

The sensor element is a ceramic cylinder plated inside and out with porous platinum electrodes; the whole assembly is protected by a metal gauze. It operates by measuring the difference in oxygen between the exhaust gas and the external air, and generates a voltage or changes its resistance depending on the difference between the two. The sensors only work effectively when heated to approximately 300°C, so most lambda probes have heating elements encased in the ceramic to bring the ceramic tip up to temperature quickly when the exhaust is cold. The probe typically has four wires attached to it: two for the lambda output, and two for the heater power. h5Operation of the Zirconia O2 Sensor/h5 The zirconium dioxide, or zirconia, lambda sensor is based on a solid-state electrochemical fuel cell called the Nernst cell. Its two electrodes provide an output voltage corresponding to the quantity of oxygen in the exhaust relative to that in the atmosphere. An output voltage of 0.2 V (200 mV) DC represents a lean mixture. That is one where the amount of oxygen entering the cylinder is sufficient to fully oxidize the carbon monoxide (CO), produced in burning the air and fuel, into carbon dioxide (CO2). A reading of 0.8 V (800 mV) DC represents a rich mixture, one which is high in unburned fuel and low in remaining oxygen. The ideal point is 0.45 V (450 mV) DC; this is where the quantities of air and fuel are in the optimum ratio, called the stoichiometric point, and the exhaust output will mainly consist of fully oxidized CO2. The voltage produced by the sensor is so nonlinear with respect to oxygen concentration that it is impractical for the electronic control unit (ECU) to measure intermediate values - it merely registers "lean" or "rich", and adjusts the fuel/air mixture to keep the output of the sensor alternating equally between these two values. This type of sensor is called 'narrow band', referring to the narrow range of fuel/air ratios to which the sensor responds. The main disadvantage of narrow band sensors is their slow response: the control unit determines the exhaust gas composition by averaging the high and low swings in the sensor's output, and this process creates an inevitable delay Not quite sure this oxygen sensor fits your motorcycle? Feel free to contact our Tech Support. 7 trained Magnum representatives are looking forward to respond to your inquiry.

Please read instructions before installation.

REQUIRED SKILL LEVEL: Basic Skill Required REQUIRED TOOLING: Basic Hand Tools Required ESTIMATED TIME OF INSTALLATION: up to 60 Minutes This Bosch oxygen sensor installs universal. You need to cut the harness of existing sensor and establish connections on wires across motorcycle harness and new sensor wires, with shielded bullet connectors or soldering. Setup can be conducted in less than 60 minutes by a mechanical minded installer being slightly inclined with electronics.

Disconnect old oxygen sensor connector from motorcycle harness using extra care not to damage connector, as it must be re-used.

Remove old sensor from exhaust using an O2 sensor socket or 22mm wrench. Place the old and new oxygen sensors side by side on a flat surface, preparing to make an accurate cut of the lead wires. Cut the lead wire(s) to a length that when the plug end is spliced to the new universal sensor, the overall length will be the same or slightly longer than the old sensor.

Stagger-cut wire lead(s) stripping off approx. 1/4” of insulation from the end of each wire. For steps #4 and #5 please refer to the Manufacture Wire Colors image to determine proper wire matching of universal sensor lead(s) to connector lead(s) for each specific application (heater wires are not polarity dependant).A) On universal sensors where heat-shrink tube(s) are already installed: insert just striped portion of wire(s) into crimp terminals of new sensor and crimp terminals. B) On universal sensors where heat-shrink tube(s) are not installed: insert just striped portion of wire(s) into crimp type "butt" connectors (approx. 1/4”) and crimp.

After all connections have been made, slip the heat shrink tube over the crimped connections and heat the tube with an appropriate heat source until the connection is completely sealed, taking care not to over-heat or burn tubing see image.

Remove protector cap just prior to installation A) Flanged applications-(where flange is not already installed on sensor) Install flange to exhaust manifold first, then mount sensor in flange (a copper gasket is bonded to the flange no additional gasket is required) B) Flanged applications- (where flange is already installed on sensor) it is important to use the supplied gasket before installing sensor).

Note

Install all sensors with new gasket supplied torque to proper specs as follows: M18 sensors - install finger tight then 1/2 -3/4 turn with wrench, then secure with 22m socket using 35Nm torque

Connect and route lead wire as originally installed.

h5Always insulate contacts!/h5

Wiring

h51-wire/h5 Use only the black wire (signal). h52-wire/h5 Use the black (signal) and the grey (ground) wires, cut and insulate the rest. h53-wire/h5 Use the black (signal) and the 2 white (heater) wires and cut the rest. Order of white wires is not important. The grey wire must be grounded. h54-wire/h5

Heavy exhaust modifications like decats, catless exhaust systems or headers trigger check engine light. In this instance the replacement of the oxygen sensor will not sort out CEL/MIL issues. If so, you need to wire up oxygen sensor simulator in order to get rid of ECU safe mode causes the engine run inefficiently spoiling both power and fuel efficiency.

This Bosch oxygen sensor installs universal.You need to cut the harness of existing sensor and establish connections on wires across motorcycle harness and new sensor wires, with shielded bullet connectors or soldering. Setup can be conducted in less than 60 minutes by a mechanical minded installer being slightly inclined with electronics.

totally satisfied

After my old o2 sensor failed in my Griso I bought two of these puppies at a price that other web sites charge for 1. 3-day delivery for free. Within an hour of receiving them my bike was back in action. I am totally satisfied and happy customer. Bosch and magnum a good combination.

This bosch o2 sensor fits like factory in my 1190. Works well for the fracture of the price. Although you need to crimp the connectors, it's a piece of cake, harness length is the same as original. What more could you want out of an o2 sensor?

throttle response from the engine was noticeably better

Finally got to ride my bike with the new oxygen sensors fitted. Didn't seem to make much difference at first but after a while the throttle response from the engine was noticeably better. Great deal for the price. As good as any direct fit OEM, but for lot less.

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Suzuki Boulevard C109R

The original Magnum Boulevard C109R Motorcycle Bosch Oxygen Sensor works on the stock engine as well as it is a great choice for any amount of modifications you may have made to your motor because this Suzuki O2 sensor adapts to each individual upgrade setup or the factory Bike engine. You have reached Magnum Manufacturer Zone. Buy from the factory outlet with confidence at the lowest prices and be covered by full warranty. After this Suzuki lambda probe is properly installed on your Boulevard C109R, you will definitely know you are getting a big gain of driving power /restoring factory engine performance /, fuel economy furthermore fuel efficiency / had been reduced to worn oxygen sensor/. Regarding the claims, we never say more than our Bike is able to fulfill. Magnum Tuning Engineering handles these figures fair and square. If you take a look inside the engine bay and around the engine of your Bike, there are a lot of stuffs in it. However it is not a big deal to locate the exhaust of your Suzuki and install our O2 sensor on your Boulevard C109R motor. Motorcycle Bosch Oxygen Sensor installs to this part and does its job through the oxygen sensor signal. Leo posted this comment, Hi there guys, just to let you know, package arrived on time, kit and stuff is complete, we installed them easy on my Suzuki. Tests brought fine claims, I give you 5 stars. Thanks for sending gifts. Nice of you. Thanks TOM!!!!!!